Those viruses that are understood and have remedy for, are those
that are molecularly simple and thus easy to control.
Molecular research and Virology is an ever ongoing and tough
subject of study and undertaking. While scientists are busy trying
their damndest to find a solution for those incurable diseases,
people are ignorantly misusing Antibiotics causing even the common
flu virus to become invincible to all the latest Antibiotics.
I mean, people play a big part in medical science's advancements,
but unfortunately, people being people will just do as they
please.
As to your question, I'd say that human inteligence can't possibly
grasp EVERYTHING that God or Nature has created. Arguably you may
say, given time we may eventually we will. In this regard, only
time will tell.
